This is often carried out on patients who have angina.

这是经常进行的关于谁的病人有心绞痛。

youdao

Laryngeal edema attacks are often carried out immediately tracheotomy.

有喉水肿发作时，常需立即进行气管切开术。

youdao

Negotiations are often carried out in secrecy to avoid compromising the safety of hostages.

商议经常是秘密进行，以防止危及到人质的安全。

youdao

Before the Goldwater-Nichols reform, each branch of the military too often carried out its operations with little heed to what its counterparts were doing, a situation that seriously hampered effective prosecution of the Vietnam War.

FORBES: Fact and Comment

These interventions are stopping smoking, promoting single pregnancies in IVF treatments, reducing planned Caesarean sections - which are often carried out before due dates - unless there is a medical reason by 80%, providing progesterone supplements to women with high-risk pregnancies and cervical stitches for women with a "weak" cervix that could mean a baby does not go to term.

BBC: 'Too little known' on early birth

As in Madrid, these attacks will often be carried out by individuals who have only a passing contact with the al-Qaeda organisation, even if they claim to be members of it.

ECONOMIST: Chasing al-Qaeda